1、首先打开oracle sql developer工具，没有此工具的可以去百度浏览器下载安装即可，鼠标点击查看菜单。
让客户满意是我们工作的目标，不断超越客户的期望值来自于我们对这个行业的热爱。我们立志把好的技术通过有效、简单的方式提供给客户，将通过不懈努力成为客户在信息化领域值得信任、有价值的长期合作伙伴，公司提供的服务项目有：域名注册、雅安服务器托管、营销软件、网站建设、且末网站维护、网站推广。
2、在二级菜单中，选择SQL历史记录选项，或者按快捷键F8打开窗口。
3、默认打开是会显示在最下方的小窗口，在标题栏双击鼠标左键，即可最大化窗口，再次双击左键还原窗口。
4、最大化窗口之后，便于更好的查询记录结果，可以看到，以往执行的sql记录都显示出来了可以往下翻动，查询自己需要的日志。
查看oracle数据库是否为归档模式
SQL select name,log_mode from V$database;
NAME LOG_MODE
------------------ ------------------------
TEST NOARCHIVELOG
SQL archive log list
Database log mode No Archive Mode
Automatic archival Disabled
Archive destination USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence 80157
Current log sequence 80163
编辑本段配置数据库的.归档模式
1.改变非归档模式到归档模式:
1)SQL conn / as sysdba (以DBA身份连接数据库)
2)SQL shutdown immediate;(立即关闭数据库)
3)SQL startup mount (启动实例并加载数据库，但不打开)
4)SQL alter database archivelog; (更改数据库为归档模式)
5)SQL alter database open; (打开数据库)
6)SQL alter system archive log start; (启用自动归档)
7)SQL exit (退出)
做一次完全备份,因为非归档日志模式下产生的备份日志对于归档模式已经不可用了.这一步非非常重要!
2.改变归档模式到非归档模式:
1)SQLSHUTDOWN NORMAL/IMMEDIATE;
2)SQLSTARTUP MOUNT;
3)SQLALTER DATABASE NOARCHIVELOG;
4)SQLALTER DATABASE OPEN;
3.归档相关命令
archive log stop;
archive log start;
archive log list;
show parameters;
show parameters log_archive_start;
show parameters log_archive_max_process; #归档进程数
alter system set log_archive_max_process=5; #将归档进程数改为5
select * from v$bgprocess; #检察后台进程
启动监听日志的步骤如下：
1.首先查看当前监听的状态
[oracle@oel ~]$ lsnrctl status
LSNRCTL for Linux: Version 11.2.0.3.0 – Production on 01-JUL-2012 13:29:58
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=oel)(PORT=1521)))
STATUS of the LISTENER
————————
Alias listener
Version TNSLSNR for Linux: Version 11.2.0.3.0 – Production
Start Date 01-JUL-2012 13:12:51
Uptime 0 days 0 hr. 17 min. 7 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora
Listening Endpoints Summary…
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=oel)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
Services Summary…
Service “orcl” has 1 instance(s).
Instance “orcl”, status READY, has 1 handler(s) for this service…
Service “orclXDB” has 1 instance(s).
Instance “orcl”, status READY, has 1 handler(s) for this service…
The command completed successfully
从上面显示信息来看，我们监听正常。并且没有看到Listener Log File的信息。
2.进入监听配置，查看监听详细信息
[oracle@oel ~]$ lsnrctl –进入监听配置
LSNRCTL for Linux: Version 11.2.0.3.0 – Production on 01-JUL-2012 13:35:00
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Welcome to LSNRCTL, type “help” for information.
LSNRCTL show –查看监听参数信息
The following operations are available after show
An asterisk (*) denotes a modifier or extended command:
rawmode displaymode
rules trc_file
trc_directory trc_level
log_file log_directory
log_status current_listener
inbound_connect_timeout startup_waittime
snmp_visible save_config_on_stop
dynamic_registration enable_global_dynamic_endpoint
oracle_home pid
connection_rate_limit
LSNRCTL show log_status –查看监听日志状态
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=oel)(PORT=1521)))
LISTENER parameter “log_status” set to OFF
The command completed successfully
上面信息显示Listener parameter “log_status” set to OFF说明监听日志是关闭的。这是时候我们需要启动监听日志。
3.设置当前监听，如果有多个监听，在修改监听配置的时候需要指定某个具体的监听，我这里只有一个默认的Listener，所以不需要设置。我这里还是演示一下。
LSNRCTL show current_listener
Current Listener is LISTENER
LSNRCTL set current_listener Listener
Current Listener is Listener
LSNRCTL show current_listener
Current Listener is Listener
4.启动监听日志,并且保存配置信息
LSNRCTL set log_status on –设置监听日志状态为on
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=oel)(PORT=1521)))
LISTENER parameter “log_status” set to ON
The command completed successfully
LSNRCTL save_config –保存监听配置
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=oel)(PORT=1521)))
Saved listener configuration parameters.
Listener Parameter File /u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora
Old Parameter File /u01/app/oracle/product/11.2.0/db_1/network/admin/listener.bak
The command completed successfully
5.在查看监听状态
[oracle@oel ~]$ lsnrctl status
LSNRCTL for Linux: Version 11.2.0.3.0 – Production on 01-JUL-2012 13:44:32
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=oel)(PORT=1521)))
STATUS of the LISTENER
————————
Alias listener
Version TNSLSNR for Linux: Version 11.2.0.3.0 – Production
Start Date 01-JUL-2012 13:12:51
Uptime 0 days 0 hr. 31 min. 41 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora
Listener Log File /u01/app/oracle/diag/tnslsnr/oel/listener/alert/log.xml
Listening Endpoints Summary…
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=oel)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
Services Summary…
Service “orcl” has 1 instance(s).
Instance “orcl”, status READY, has 1 handler(s) for this service…
Service “orclXDB” has 1 instance(s).
Instance “orcl”, status READY, has 1 handler(s) for this service…
The command completed successfully
通过上述配置之后，看到了Listener Log File /u01/app/oracle/diag/tnslsnr/oel/listener/alert/log.xml
最后我们可以通过监听日志来查询里面的详细信息
[oracle@oel ~]$ grep ‘2012-07-01T13:45:40′ /u01/app/oracle/diag/tnslsnr/oel/listener/alert/log.xml|more
msg time=’2012-07-01T13:45:40.302+08:00′ org_id=’oracle’ comp_id=’tnslsnr’
一 设置为归档方式
Sql代码
sql archive log list; #查看是不是归档方式sql alter system set log_archive_start=true scope=spfile; #启用主动归档sql alter system set log_archive_dest=''location=/oracle/ora9/oradata/arch'' scope=spfile;#设置归档路径sql alter system set log_archive_dest_1=''location=/oracle/ora9/oradata/arch1'' scope=spfile;sql alter system set log_archive_dest_2=''location=/oracle/ora9/oradata/arch2'' scope=spfile;#如果归档到两个位置，则可以通过上边方法实现sql alter system set log_archive_format=''arch_%d_%t_%r_%s.log'' #设置归档日记款式sql shutdown immediate;
sql startup mount; #打开控制文件，不打开数据文件sql alter database archivelog; #将数据库切换为归档模式sql alter database open; #将数据文件打开sql archive log list; #查看此时是否处于归档模式查询以确定数据库位于archivelog模式中且归档过程正在运行sql select log_mode from v$database;
sql select archiver from v$instance;
Sql代码
日志切换
sql alter system switch logfile;
这次日志切换将归档写到两个目标地,
即上边的/oracle/ora9/oradata/arch1和/oracle/ora9/oradata/arch1，要是要对目录确认
在oracle情况中运行如下查询：
sql select name from v$archived_log;
而后在操作系统中确认查询所列出的文件
二 设置非归档方式
Sql代码
sql archive log list; #查看是否是归档方式sql alter system set log_archive_start=false scope=spfile;#禁用自动归档
sql shutdown immediate;
sql startup mount; #打开控制文件，不打开数据文件sql alter database noarchivelog; #将数据库切换为非归档模式sql alter database open; #将数据文件打开sql archive log list; #查看此时便处于非归档模式三 归档相关命令
Sql代码
archive log stop;
archive log start;
archive log list;
show parameters;
show parameters log_archive_start;
show parameters log_archive_max_process; #归档进程数alter system set log_archive_max_process=5; #将归档进程数改为5select * from v$bgprocess; #检察后台进程